Laserfiche WebLink
C <br />A. Determine pump capadty: <br />Gravity Distribution <br />1. Minimum suggested is 600 gallons per hour (10 gpm) to stay ahead of <br />water use rate. <br />2. Maximum suggested for delivery to a drop box of a home system is 2,700 <br />gallons per hour (45 gpm) to prevent build-up of pressure in drop box. <br />Pressure DWribution <br />3. a. Select number of perforated laterals 3 <br />b. Select perforation spacing - 3 ft. <br />c. Su 2 ft. from the rock layer length. <br />- 2 ft oL(e ft. <br />d. Determine the number of spaces between perforations. <br />Length perf. spacing - _ e( ft. + a- ft. -.2 -1 spaces <br />e. ;�.'Z spaces + 1- a-1 perforations/lateral <br />f. Multiply perforations per lateral by number of laterals to <br />11o <br />tal number of perforations. <br />x - ("') perforations. <br />SELECTED PUMP CAPACITY Z7 gpm <br />5. Determine head requirements: <br />1. Elevation difference between pump and point of discharge. <br />feel tR <br />2. If pumping to a pressure distribution system, add five feet for pressure <br />required at manifold <br />r_ feet <br />3. Friction toss <br />a. Enter friction loss table with gpm and pipe diameter. <br />Read friction loss in feet per 100 feet from table. <br />F.L = ; • ft./100 ft of pipe <br />b. Determine total pipe length from pump to discharge <br />point. Add 25 percent to pipe length for fitting <br />loss, or use a fitting loss chart. Equivt pipe <br />length -1.25 times pipe length = in <br />x 1.25 = feet / ^ <br />c. Calculate 1 friction loss by multiplying <br />friction loss in !t/1 by equivalent pipe length <br />Total friction loss = _ x J, (o •100 = feet <br />4. Total head required is the sum of elevation differcnce, <br />special head requiresents, and total friction IQ S. <br />_ + S +� <br />(1) (2) (30 <br />TOTAL HEAD :jg: feet <br />G Pump selection <br />1. A pump must be selected to deliver at least _1�! gpm (Step A) <br />with at least I2 feet of total head (Step B). < <, <br />EM HERFORAT10N OF A BORATED LATERAL <br />r.. cow <br />= <br />al MuwM Pm" Ur hr <br />w Les" atr tgar ^ y- M. a* i jb. wwd <br />WW wer..uw <br />"WwtdwarwW <br />M atia MW <br />t.: clus aM bOw <br />ftd <br />TAKE OF 18tt10UTlt]tN DOCHAFAM 1N GAM <br />Fuad Pak 11adiewairOnciwl <br />10 <br />s <br />0.20 <br />P3 <br />12 <br />0.96 <br />0.28 <br />14 <br />2Ab <br />OJO <br />IAN <br />2.3 <br />an <br />1.17 <br />3A <br />09d <br />128 <br />4A <br />1.13 <br />1,17 <br />SA <br />134 <br />1f6 <br />aUw 1 A loot of head for -a --d&1 sys/a <br />bUse 2A hat a( Mad for e&@rattalittatsaft <br />Pipe Length <br />Paint of Discharge <br />115-- <br />l?levatiort DifTerencePipY <br />F -18b <br />l3 inch 2.0 inch 3.0 inch <br />spn+ Fr6alm t.r r- 100 n e(p" <br />10 <br />0.69 <br />0.20 <br />12 <br />0.96 <br />0.28 <br />14 <br />1.28 <br />0.38 <br />16 <br />1.63 <br />0.48 <br />18 <br />2.03 <br />0.60 <br />20 <br />2.47 <br />0.73 <br />0.11 <br />25 <br />3.73 <br />1.11 <br />0.16 <br />30 <br />5.23 <br />1.55 <br />0.23 <br />35 <br />790 <br />206 <br />0.30 <br />11.07 <br />0.39 <br />45 <br />TLT3 <br />'Y09 <br />0.48 <br />s0 <br />3.99 <br />0.58 <br />55 <br />4.76 <br />0.70 <br />60 <br />5.60 <br />0.82 <br />lip <br />